Technologies
Ice Technologies – The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride for instance, has a negative impact on the braking performance. Shimano has adopted Ice Technologies disc brake rotor and Ice Technologies pad to realize the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminum and stainless steel, provides better radiation performance achieving from 400˚C to 300˚C surface temperature. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight.

One Way Bleeding – was developed for quick and easy prevention of air in our hydraulic system. We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system.
One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.

Features
Integrated hydraulic brake and shifting lever
Convenient tool access
Simple wheel replacement
Easy and clean bleeding system
Greater rider control and confidence in all conditions
Simple set up and maintenance
Specifications
| Front | Rear | |
|---|---|---|
| Brake Hose Colour | Black | Black |
| Brake Hose (Kit) | SM-BH90-JK-SSR | SM-BH90-JK-SSR |
| Brake Type | Hydraulic disc brake | Hydraulic disc brake |
| Caliper fixing bolt – Anti loosen method | Bolt fix pin, snap ring | Bolt fix pin |
| Caliper fixing bolt – Tool size | 4mm | 4mm |
| Fixing bolt spec for rear mount – 10mm mount | – | Yes |
| Fixing bolt spec for rear mount – 15mm mount | – | Yes |
| Fixing bolt spec for rear mount – 20mm mount | – | Yes |
| Fixing bolt spec for rear mount – 25mm mount | – | Yes |
| Fixing bolt spec for rear mount – 30mm mount | – | Yes |
| Fixing bolt spec for rear mount – 35mm moun | – | Yes |
| Fixing Bolt Spec for Rear Mount | – | 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm |
| Hose joint | Straight | Straight |
| Mount type(available for IS mount with mount adapter) | Flat mount | Flat mount |
| Oil | Shimano Mineral | Shimano Mineral |
| One way bleeding | Yes | Yes |
| Pad – Option | L03A-R | L03A-R, – |
| Pad – Standard | K03S Resin, K04S Metal | K03S Resin, K04S Metal |
| Pad mount | Pad Axle | Pad axle |
| Piston | 2 | 2 |
| Recommended brake lever | ST-4720, ST-4725 | ST-4720, ST-4725 |
| Recommended brake rotor | SM-RT64 | SM-RT64 |










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